Revolving and tilting mold for casting tubes



(No Model.)

G. ADAMS.

REVOLVING AND TILTING MOLD FOR CASTING TUBES.

No. 368,746. 4 Patented Aug. 23, 1887.

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4o IKIIIIIIIIII GEORGE ADAMS, OF ANSONIA, CONNECTICUT.

REVOLVING AND TILTING MOLD FOR CASTING TUBES.

SPECIFICATION forming part of Letters Patent No. 368,746, dated August23, 1887.

Application filed June 27, 1887. Serial No. 242,576. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE ADAMS, of Ansonia, Connecticut, have inventeda new and useful Revolving and Tilting Mold for Casting Tubes, of whichthe following description and claim constitute the specification, andwhich is illustrated inthe accompanying sheet of tubes, and it can beused in making tubes of v other metals.

Figure lis a central vertical section of the apparatus on a verticaldiametric line of Fig. 2 and on horizontal diametric lines of Figs.

3 and 4. Fig. 2 is a plan viewof the grooved ring 18. Fig. 3 is a planView of the diametrically-divided ring 35. Fig. 4 is a plan view of thecore-bit 33. l

The numeral 1 indicates the main sill of the frame of the apparatus. Thestandard 2 is made in two parts, and is adj ustable in height by :meansof the bolts 3 and the slots 4. A corresponding standard on the nearerbut removed end of the sill 1 is correspondingly adjustable. These twostandards support the plate 5, and that plate has a longitudinal trackon its upper side, with a truck, 6, on that track for the transportationof pots containing the melted metal to be used in casting. The diagonalarm 7 is adj ustably attached to the standard 2 by means of the bolts 8and the slots 9, and is provided with a trunnionbearing in its upperend, and a corresponding arm is correspondingly attached to the othercorresponding standard. rlhe standard 2 is provided with a bearingcovered with the bearing-cap 10 for the shaft 11, and the plate 5sustains the hanger 12 and the shaft 13. The shaft 1l is turned by thecrank 14 and works the bevel-gears 15, 16, and 17. The ring 18 isprovided with the annular groove 19 on its upper side and thecorresponding groove, 20, on its under side, and also with the trunnions2l and 22, and those trunnions rest and turn in the trunnion-bearings inthe two diagonal arms.`

The mold 23 is supported by the ring` 24, aided in some positions by thering .25, both of which rings are fixed about the middle circumferenceof the mold. The ring 24 has the annular groove 26 on its under side,and the ring 25 has the corresponding groove 27 on its upper side. Aseries of anti-friction balls, 28 and 29, rest in the grooves 19 and 27,respectively, under the grooves 26 and 20, respectively. The core 30 ismade around the core-barrel 3l, in the usual manner, and is supported bythe under core-bit, 32, and is held in its proper central position bythe upper core-bit, 33. This latter bit is a ring surrounding the coreand provided with three thin radial arms, the outer diagonal ends ofwhich rest on the annular diagonal interior surface at the upper end ofthe mold 23, and the upper edges oi' which are protected against theaction of the melted metal by plumbago or other refractory substance.The bowl 34 is attached to the upper end of the mold 23 in a convenientposition to receive melted metal from pots on the truck 6. The dividedring 35 is fixed to the sniallsill 36 of the frame by means of the bolts37 and the bolt-holes 38. That half of the ring which is on the leftside of the diameter of Fig. 3 is turned in the opposite direction inFig. 1, and is detachable from the other part of the ring bysimplylifting its xed pins 39 and 40 out of corresponding pin-holesinthat other half. Theannular bevel-gear 4l surrounds the uppercircumference of the mold 23 and meshes with the bevel- Vgear 17 whenthe mold is in its upright position.

The mode of operation is as follows: Vhile the melted metal is beingpoured into the mold the mold is being revolved by the crank 14, andafter the mold is lled and the tube cooled the removable half of thering 35 is lifted away and the mold and its contents are tilted upon thetrunnions 21 and 22 to a horizontal position, and the tube is thenconveniently removed by pulling it, with the core and upper core-bit,out of the upper end of the mold. The revolution of the mold while themelted metal is being poured into it causes the tube to be built upspirally around .the core, and thus produces a freedom from blow-holesand an excellence and uniformity in the casting` IOO which cannot beattained'where the mold is stationary, and the metal is` therefore firstdeposited on one side of the core and reaches the other sides by owagealone, and that revolution also preserves the bowl and the mold frombeing burned through by the stream of melted metal falling or runningconstantly on one place in the interior thereof. The tilting of the moldenables the cooled tube to be 1o withdrawn horizontally therefrom, andvthus lessens the labor incident to the business.

I claim as my invention- The combination of themold 23, and suitablemechanism for revolving the same on its 1ongitudinal axis, with the ring18, surrounding 15 bearings in suitable standards or arms,- subzostantiallyas set forth.

GEORGE ADAMS.

Witnesses: v

FREDERICK W. HOLDEN, WILLIAM GREATOEEX.

